CN204459520U - 油田用高压注水管道 - Google Patents
油田用高压注水管道 Download PDFInfo
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- CN204459520U CN204459520U CN201520099858.8U CN201520099858U CN204459520U CN 204459520 U CN204459520 U CN 204459520U CN 201520099858 U CN201520099858 U CN 201520099858U CN 204459520 U CN204459520 U CN 204459520U
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CN201520099858.8U CN204459520U (zh) | 2015-02-12 | 2015-02-12 | 油田用高压注水管道 |
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Cited By (1)
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CN104613256A (zh) * | 2015-02-12 | 2015-05-13 | 唐山冀东石油机械有限责任公司 | 油田用高压注水管道 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104613256A (zh) * | 2015-02-12 | 2015-05-13 | 唐山冀东石油机械有限责任公司 | 油田用高压注水管道 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200927 Address after: 100000 Beijing city Dongcheng District No. 16 Andrew Patentee after: PetroChina Co.,Ltd. Address before: 063200, 27, Xincheng Avenue, Caofeidian District, Hebei, Tangshan City Patentee before: TANGSHAN JIDONG PETROLEUM MACHINERY Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201021 Address after: No.10 Guoan Road, comprehensive bonded zone, Caofeidian Industrial Zone, Tangshan City, Hebei Province Patentee after: TANGSHAN JIDONG PETROLEUM MACHINERY Co.,Ltd. Patentee after: PetroChina Co.,Ltd. Address before: 100000 Beijing city Dongcheng District No. 16 Andrew Patentee before: PetroChina Co.,Ltd. |
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TR01 | Transfer of patent right |